user
Divide 20 into three groups of seven, two groups of six, and one group of two.
Response:
assistant
One group of seven can be 3, 4, 7. The second group of seven can be 5, 6, 9. The third group of seven can be 1, 2, 8. A group of six can be 10, 11, 12, 13, 14, 15, and the last group of two can be 16 and 17.